#loading_box {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  .right,
  .left {
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    background-color: var(--color9);
    transition: 0.5s ease;
  }
  &.open .left {
    transform: translateX(-100%);
  }
  &.open .right {
    transform: translateX(100%);
  }
  &.open .center {
    opacity: 0;
  }
  .left {
    left: 0;
  }
  .right {
    right: 0;
  }
  .center {
    position: relative;
    display: flex;
    flex-flow: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease-in-out;
    .logo {
      position: relative;
      width: 15rem;
      height: 15rem;
      border-radius: 50%;
      border: 0.3rem solid transparent;
      border-top-color: #409eff;
      animation: ring 1.6s linear infinite;
      &::before {
        content: '';
        position: absolute;
        top: 0.5rem;
        left: 0.5rem;
        right: 0.5rem;
        bottom: 0.5rem;
        border-radius: 50%;
        border: 0.3rem solid transparent;
        border-top-color: #1389a7;
        animation: ring-reseve 0.8s linear infinite;
      }
      &::after {
        content: '';
        position: absolute;
        top: 1.5rem;
        left: 1.5rem;
        right: 1.5rem;
        bottom: 1.5rem;
        border-radius: 50%;
        border: 0.3rem solid transparent;
        border-top-color: #49a923;
        animation: ring 0.6s linear infinite;
      }
    }
    @keyframes ring {
      0% {
        transform: rotate(0);
      }
      100% {
        transform: rotate(360deg);
      }
    }
    @keyframes ring-reseve {
      0% {
        transform: rotate(0);
      }

      100% {
        transform: rotate(-360deg);
      }
    }
  }
}
